Overview
There are two programs to consider in Illinois: Solar for All (SFA) and the Microsoft Engie. Each program has unique geo- and LMI qualifications.
Utility Zones
There are two main utility zones in Illinois Solstice works with: Ameren and ComEd. Note a third utility, MidAmerican, does have a slight bit of coverage into Mercer and Henry Counties where Ameren and ComEd coverage ends.
The below table shows the total sums of the demographics and LMI populations by utility zone coverage. ComEd covers about three times as much population as Ameren in Illinois.
Geoqualification
The Microsoft Engie project uses a geoqualification map that was designed by Solstice. More details on the data used to create this map can be found on the Coda Page.
For the SFA Program, an initial set of census tracts were designed (“legacy” layer in the online map), but an updated version was made available (“current” layer). Both layers can be used until June 2024. Each of these layers are shown on the below map.